Sp.KB Ball Clay

Description: WBB Devon Ball Clay Group 1

Oxide	Analysis	Formula
CaO	0.20%	0.01
K2O	1.00%	0.03
MgO	0.20%	0.01
Na2O	0.10%	-
TiO2	0.90%	0.03
Al2O3	35.00%	1.00
SiO2	46.20%	2.24
Fe2O3	1.30%	0.02
LOI	13.10%	n/a
C	2.40%	n/a
Oxide Weight		247.42
Formula Weight		292.81

Notes

Particle Size (e.s.d.)
125 microns - 0.30
10 microns - 97
2 microns - 86
1 microns - 78
Modulus of Rupture at 110C
Mn/M2 - 4.9
lbf/in2 - 710
Defloculant Required - (3:1 Na₂SiO₃(C.100):Na₂CO₃) - 0.1
Water Absorption
1120C - 9.5
1220C - 2.50
Shrinkage Dry to Fired
1120C - 14.00
1220C - 16.50
Reflectance 464nm
1120C - 80
1220C - 76
Refractoriness
Cone - 33, 1730C

Related Information

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Typecodes	Ball Clay Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites.

By Tony Hansen
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